Olivier Wietrich

Handy. A free, open source, and extensible speech-to-text application that works completely offline.

reactive-resume. A one-of-a-kind resume builder that keeps your privacy in mind. Completely secure, customizable, portable, open-source and free forever. Try it out today!

ink-text-shimmer. Shimmering effect for Ink text components

subaddress-allow. Conditionally allow email subaddressing using allow lists or custom async functions.

papermark. Papermark is the open-source DocSend alternative with built-in analytics and custom domains.

action-cognito-jwks. Github action to retrieve AWS Cognito jwks keys

cognito-jwkset. Create a set of cryptographic keys and metadata off your cognito user pool

polar. Polar — A billing platform for the intelligence era

cognito-fetch. AWS Cognito request with optional request signing

cognito-hash. Cognito base64-encoded HMAC SHA-256 hash

get-week. Generate 7-day week calendar for any given date with configurable start day

month-end. Get the last day of any month and handles leap years automatically.

available-slots. Find available time slots from your daily schedule with configurable chunks & breaks.

hexa-month. Generate 42-day calendar grids (6 weeks) for any month.

postiz-app. 📨 The ultimate agentic social media scheduling tool 🤖

subaddress. Detect email subaddressing and return plain email address

reconcile. Reconcile data from multiple async sources.

fallback. Run async functions in order until one succeeds

retry. Elegant Retry mechanism with max attempts, intervals and backoff and exponential backoff rate.

markup-tokenizer. Markup tokenizer transform stream

ip-leak. Reveals the real IP address of a user using WebRTC, even behind some proxies or VPNs.

dns-check. Quick and dirty DNS health check

dns-resolve. DNS resolution with timeout and retry control and custom servers.

mite. Tiny and ultra performant HTTP GET module for crawling HTML and assets with auto-deflate.

deflate-stream. Conditional decompression transform stream.

claude-contribs. CLI tool to generate GitHub-style contribution maps for Claude usage

topperware. Flexible middleware with input/output control

haversine-middle. Find the central point from a set of coordinates using Haversine distances, and return the nearest target point.

commands-emulator. Emulate Unix commands for scripting, automation, and fun.

find-nearest-point. Finds the nearest point in a list of latitude/longitude coordinates to a given point.

haversine-matrix. Returns distance matrix for collection of latitude/longitude points using the Haversine formula

lin-kernighan. Adaptive k-opt heuristic improving TSP tours by swapping edges to shorten routes.

tsconfig-swc. Translate a tsconfig JSON object into a swcrc JSON object.

guess-email. Generate a list of potential email addresses from a user’s first and last name.

email-pattern. Return pattern used by a given email address considering the user's first and last name

email-provider. Return the email provider for a given email address

smtp-verify-email. Verify email deliverability using raw SMTP handshake and MX lookup.

verify-email. Check if an email address truly exists using SMTP based verification

get-mail-server. Get hostname of the mail server where incoming emails should be delivered for a given domain

disposable-email. List of domains for disposable emails

email-inbox. Return email inbox URL based on a given email

detect-package-manager. Detect the package manager engine (npm, pnpm, yarn, bun) and versions

cmplr. Speedy web compiler without the config

package-install. Fast and programmatic npm install based on runtime engine

sensai. Instantly turn your code into production-ready APIs and AI agents.

corner-smoothing.  Apple-like smooth corners for Tailwind CSS.

the-book-of-secret-knowledge. A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools and more.

amazon-cognito-passwordless-auth. Passwordless authentication with Amazon Cognito: FIDO2 (WebAuthn, support for Passkeys), Magic Link, SMS OTP Step Up

prompt-engineering. Tips and tricks for working with Large Language Models like OpenAI's GPT-4.

docs. The open-source repo for docs.github.com

aws-appsync-community. The AWS AppSync community

javascript-interview-questions. List of 1000 JavaScript Interview Questions

tbd-cd-workflow. trunk based development continuous delivery workflow; Moved to: https://github.com/stakater/developer-handbook

ora. Elegant terminal spinner

nanoid. A tiny (118 bytes), secure, URL-friendly, unique string ID generator for JavaScript

octofiles. ⬆️ Browser Extension to easily upload files to the cloud using GitHub

gitmoji-cli. A gitmoji interactive cli tool for using emojis on commits. 💻

next-on-netlify. Build and deploy Next.js applications with Server-Side Rendering on Netlify!

golden-grid. Draw golden spirals on top of a DOM element

promise-chain. Execute promises one after an other using Array reduce

bonjour. A Bonjour/Zeroconf protocol implementation in JavaScript

grimpette. Application navigation without the complicated stuff

carbon. A design system built by IBM

design-system. 🗃 Storybook Design System

clean-code-javascript. Clean Code concepts adapted for JavaScript

libgdx-two-finger-rotation. An Android Studio app that shows two-finger rotation around Z axis using libgdx.

libgdx-in-fragment. Hello World program for libgdx running in a fragment using Android Studio 2.1

HTCViveRawData. Prints out (Into Console and a text file) Raw Positional Data (Location and Rotation) from Headset and Controllers in Real time (with high-resolution timestamps)

FreePIE-HTCVive-Custom-Controller. Shows how to replace HTC Vive controllers with your own custom controllers using FreePIE

og-image. Open Graph Image as a Service - generate cards for Twitter, Facebook, Slack, etc

starter-workflows. Accelerating new GitHub Actions workflows

send. Simple, private file sharing from the makers of Firefox

homebridge. HomeKit support for the impatient.

quiet. Transmit data with sound. Includes binaries for soundcards and .wav files.

mailgo. 💌 mailgo, a new concept of mailto and tel links [deprecated]

FPSSample. A first person multiplayer shooter example project in Unity

roughViz. Reusable JavaScript library for creating sketchy/hand-drawn styled charts in the browser.

serverless-application-model. The AWS Serverless Application Model (AWS SAM) transform is a AWS CloudFormation macro that transforms SAM templates into CloudFormation templates.

openlayers. OpenLayers

awesome-selfhosted. A list of Free Software network services and web applications which can be hosted on your own servers

KaTeX. Fast math typesetting for the web.

example-electron-app. An example Electron app that uses Keygen for licensing and auto-updates.

squoosh. Make images smaller using best-in-class codecs, right in the browser.

web-otp-demo. Demo of generating OTP in JS

pagespeed-inslides. HTML5 Slide Deck Generator Tool Based on the PageSpeed Insights API

The-Documentation-Compendium. 📢 Various README templates & tips on writing high-quality documentation that people want to read.

nan. Native Abstractions for Node.js

webrtc-explorer. :earth_africa: P2P Network Routing Overlay designed for the Web platform (browsers)

ui-element-samples. A collection of prototyped UI elements

the-art-of-command-line. Master the command line, in one page

awesome-nextjs. :notebook_with_decorative_cover: :books: A curated list of awesome resources : books, videos, articles about using Next.js (A minimalistic framework for universal server-rendered React applications)

awesome-mac.  This project is dedicated to collecting high-quality macOS software and organizing them systematically by different categories for easy search and use.

git-gateway. A Gateway to Git APIs

spoof. Easily spoof your MAC address in macOS, Windows, & Linux!

All-About-Programming. Everything about programming!!

scrollhook. Browser scroll hook

30-seconds-of-code. Coding articles to level up your development skills

Awesome-Design-Tools. The best design tools and plugins for everything 👉

allowit. JWT token/cookie authorization middleware

robac. Role based access control

filterify. Wrap around array filter and turns any function into a filter

liquid-swipe. Swift

node-scp2. [MAINTAINER WANTED] A pure javascript scp program based on ssh2.

linaria. Zero-runtime CSS in JS library

deeptraffic. DeepTraffic is a deep reinforcement learning competition, part of the MIT Deep Learning series.

zeroin. The only Event Emitter you need

react-use. React Hooks — 👍

array-include. String/Array index of an other array

equal-or-index. Test if string are equal, if string index of array or array items index of an other array.

uri-params-match. Match URI query parameters with given object

date-resolve. Resolve Numbers, Dates or Strings (RFC822 and ISO 861) into dates in milliseconds

redirect-uri-match. Validate a redirection URI query parameter with a whitelist of URIs

redirect-uri. Loose but safe validation for redirection URI

string-hex. Convert string to hex

even-odd. Extract even and odd numbered characters into separate strings

add-leading-zeros. Add leading zeros to binary string based on n-grouped bits

bits-prettifier. Group binary string into group of 4 bits

remove-leading-zeros. Remove leading zeros from a binary string

string-bits. Convert string into bits

diceware-list. English diceware list of words

dice-random. Unbiased and strong dice number generator

diceware-passphrase. Create diceware passphrase

diceware-word. Generate passphrase word from diceware dictionary

quicklink. ⚡️Faster subsequent page-loads by prefetching in-viewport links during idle time

array-prefix. Lookup list of words starting with given string (ideal for autocompletion)

email-domain-levenshtein. Suggest email based on the Levenshtein distance between given email and popular domains

email-account. Return possible online access for a given email account

email-suggest. Suggest email address based on list of popular email domains

email-domain-popular. List of popular email domains

email-domain. Create email address from incomplete email string and given domain

awesome-nlp. :book: A curated list of resources dedicated to Natural Language Processing (NLP)

orientation-express. Get the EXIF orientation of a file in a readable format

tech-interview-handbook. Curated coding interview preparation materials for busy software engineers

terminalizer. 🦄 Record your terminal and generate animated gif images or share a web player

evergreen. 🌲 Evergreen React UI Framework by Segment

carbon-now-cli. 🎨 Beautiful images of your code — from right inside your terminal.

imageserver. Image server toolkit in Go

tag-reduce. Reduce tagged template literals to a single value

release-drafter. Drafts your next release notes as pull requests are merged into master.

itty-bitty. Itty.bitty is a tool to create links that contain small sites

react-cool-starter. 😎 🐣 A starter boilerplate for a universal web app with the best development experience and a focus on performance and best practices.

inspiration. List of blog posts that inspire me everyday

automerge-classic. A JSON-like data structure (a CRDT) that can be modified concurrently by different users, and merged again automatically.

annul. Cancel promise if not resolved or rejected before a given time in miliseconds

intertag. Compose template literals using function interpolation

tag-compose. Compose template literals together and create your own template engine

runout. Helper to know if you are running out of time

spruceup. Spruce up CSS classes

array-classify. Arrange array into groups of objects

memoirs. Chronologically sort dates or objects

deno. A modern runtime for JavaScript and TypeScript.

ParlAI. A framework for training and evaluating AI models on a variety of openly available dialogue datasets.

corporationify. Extract corporation name and type from string

javascript-algorithms. 📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings

cypher-through. Filter Neo4j records and return what really matters

cypher-async. Neo4j cypher asynchronous transaction the right way

array-to-props. Convert an array into a non iterable object

array-compose. Compose an array with an other one

funless. Object without the fun...ction

module-server. module-server

shared-editing-demo. Demo of shared text editing using Yjs and IPFS

react-states-machine. React state management using finite state machine

Functional-Light-JS. Pragmatic, balanced FP in JavaScript. @FLJSBook on twitter.

sharedb. Realtime database backend based on Operational Transformation (OT)

must-watch-css. 🔥 CSS talks you have to see ⚡️ covering CSS Grid, flexbox, custom variables, performance, frameworks, Sass, tools, and more! 🚀

hsimp. How Secure is My Password for your own website

deepmix. Truly mix two objects together

manner-tape. Test your manner services quickly with tape

mixin-deep. Deeply mix the properties of objects into the first object, while also mixing-in child objects.

capture-stream. Capture stream output.

awesome-dat. Community curated resources for Dat Project [ DEPRECATED - More info on active projects and modules at https://dat-ecosystem.org/ ]

cookie-token. Create a session cookie from a JWT token

isokay. Javascript schema validator

passover. Recursively traverse an object and return property

neo4j-seed. Seed Neo4j database from a folder

airpaste. A 1-1 network pipe that auto discovers other peers using mdns

secure-password. Making Password storage safer for all

nyancss. 🌈 Write plain CSS while reaping benefits of CSS-in-JS

fastify. Fast and low overhead web framework, for Node.js

kareem. Next-generation take on pre/post function hooks

methodd. Create routing methods/services you can plug to anything

manner. Create HTTP services in the best possible manner

manner-react. Create HTML pages using React and Manner

apollo. An open autonomous driving platform

fuzzysearch. :crystal_ball: Tiny and blazing-fast fuzzy search in JavaScript

speakeasy. **NOT MAINTAINED** Two-factor authentication for Node.js. One-time passcode generator (HOTP/TOTP) with support for Google Authenticator.

inflate-body. Automatically unzip an HTTP stream and validate its buffer length

request-form. Parse x-www-form-urlencoded requests.

request-text. Parse text/plain requests

practicalnode. Practical Node.js, 1st and 2nd Editions [Apress] 📓

salute. The best middleware for your HTTP request/response

keygrip. Key signing and verification for rotated credentials

git-point. GitHub in your pocket :iphone:

tether-password. Hash and store password using Argon2 algorithm

manner-path. Express-style path to regexp for manner services

path-find. Find closest path in a URL-map object

path-match. please use path-to-regexp's `match` function

csv-write-stream. A CSV encoder stream that produces properly escaped CSVs

binary-xhr. small module for fetching things as binary in a browser

rest-collection-stream. REST client for streaming collections and lists